So far as the tribe of Ghifar is concerned, Allah had pardoned it, and Allah had granted protection to the tribe of Aslam, and as for the tribe of Usayya, It had disobeyed Allah and His Messenger, (and further said): O Allah! curse the tribe of Lihyan curse Ri'l, and Dhakwan, and then fell in prostration. It is after this that the cursing of the unbelievers got a sanction. (Using translation from Muslim 679b)
خُفَافُ بْنُ إِيمَاءَ رَكَعَ رَسُولُ اللهِ ﷺ ثُمَّ رَفَعَ رَأْسَهُ فَقَالَ «غِفَارُ غَفَرَ اللهُ لَهَا وَأَسْلَمُ سَالَمَهَا اللهُ وَعُصَيَّةُ عَصَتِ اللهَ وَرَسُولَهُ اللهُمَّ الْعَنْ بَنِي لِحْيَانَ وَرِعْلًا وَذَكْوَانَ» ثُمَّ إِنَّهُ وَقَعَ سَاجِدًا قَالَ خُفَافٌ فَجُعِلَتْ لَعْنَةُ الْكَفَرَةِ مِنْ أَجْلِ ذَلِكَ